LADX: Adding 'Option Groups' to the player options page.

[mrkssr]

What is this fixing or adding?

Adding the option groups to the options page for LADX. This PR is a separated part of #3541 which was a duplicate of #3542. So this one is an addition of the already merged #3542.

How was this tested?

Starting the webhost locally and open the player options page. Also configuring and exporting configs, compare with a config from before the change and take a look if the result is the same.

If this makes graphical changes, please attach screenshots.

[mrkssr]

Ordered the options aroundish the original fields. And misc sounded like something for the end. But true, that still effects the logic. So moved it above as suggested.